(The Conversation) - Americans are used to having a lot of choices. What to wear today? What to eat? What to read? Yet in so many elections when picking a president, state governor, or mayor we seem to have only two choices: Vote for the Democrat or the Republican. Why does the United States have a two-party political system?
As apolitical scientistwho studiespoliticalparties particularly theLibertarianParty I can tell you there are other options.
Why do we have a two-party system?
Political scientists like me have a simple explanation for the United States two-party system:Duvergerslaw, named after French political scientist Maurice Duverger. It states that only two major parties will emerge whenever elections follow a set of rules known as single-winner plurality voting.
Single-winnermeans only one candidate can win a given election. Plurality voting means whoever gets the most votes wins. Under this system, a party is most likely to win if it runs (or nominates) only one candidate rather than allowing party supporters to split their votes among multiple candidates.
Many voters who prefer an independent or minor-party candidate might decide that it would be more practical to choose among the major-party candidates who have better odds of winning the election. Thus, even when more than two candidates appear on a ballot, voters often believe that they only have two choices: the Republican or Democrat.
Think of it this way: Suppose a teacher threw a class party and agreed to order whatever food the students wanted. There are just two rules: The teacher will order only one food item for the whole class (single-winner), and whichever food gets the most votes wins (plurality vote). Rather than 10 pizza lovers splitting their vote with six for cheese and four for pepperoni leaving seven ice cream fans to scoop up the victory they can unite behind one pizza flavor and win.
The same logic explains why the U.S. has a two-party system. When there can be only one winner, and the winner is whoever gets the most votes, people with similar but not identical preferences have good reason to find common ground and work together or else theyll lose. They must try to build a coalition of voters that is bigger than any other. In turn, that groups opponents will try to counter by enlarging their own coalition.
Thus, the rules for voting dictate that we end up with two large parties competing to be big enough to win the next election. While other options exist, many voters decide to pick between the only two that can win.
It doesnt have to be Republican vs. Democrat
While a Democrat or Republican wins most elections in the United States, that doesnt mean voters can only have two choices. Consider these three points.
First, theU.S. Constitutiondoes not allow for only two political parties. In fact, the Constitution says nothing at all about parties. Many of theFoundingFatherswere skeptical of such factions, fearing that they would divide the American people and serve the interests of ambitious politicians. Yet many of those same visionaries soon helped to form thefirst political parties, after realizing the importance of coordinating with like-minded people to win elections and advance a common policy agenda. With afewbriefexceptions, the United States has had a two-party system ever since.
Second, plenty of candidates run for office every year as something other than a Republican or Democrat. These includeindependentswho are not affiliated with any party orminor-partynominees for instance, from the Libertarian or Green Party. Its just that these candidatestypically do not garner many votesandrarelywinan election.
Take the nations third-largest political party, the Libertarian Party. Asmy researchshows, Libertarians generally agree with the Republican Party on economic issues and the Democratic Party on social issues. This makes the Libertarian Party appealing to some voters who consider themselvesfiscally conservative and socially liberal.
Third, in states such as California that have atop-two primarysystem, elections sometimes come down to two candidates from the same party. This process begins with an open primary in which voters may choose among multiple candidates from various parties at the same time. The top two vote-getters go on to the general election months later even if they are bothDemocratsorRepublicans.
Other states, such asMaineandAlaska, useranked-choice voting. This systemallows voters to rank all candidates Democratic, Republican, independent, or minor party from their favorite to least favorite on the same ballot. The winner is whichever candidate gets more than 50% of the vote, either at first or aftereliminating the last-place finisher and reallocatingthat candidates voters to their second-choice candidates.
So voters often do have more options than simply Democrat vs. Republican. The problem is that people feel as if only one party or the other has a chance to win and cast their votes accordingly. It all comes down to the rules for running elections. If you want more choices, youll have to change those rules.
This article is republished from The Conversation under a Creative Commons license. Read the original article here:https://theconversation.com/why-do-voters-have-to-pick-a-republican-or-a-democrat-in-the-us-203830.
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Why do voters have to pick a Republican or a Democrat in the US? - kinyradio.com
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